Papers by Alexander Nemecek
Topic-Based Watermarks for Large Language Models (2026.findings-acl)
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| Challenge: | Existing watermarking methods often involve trade-offs between attack robustness, generation quality and additional overhead. |
| Approach: | They propose a topic-guided watermarking scheme that partitions the vocabulary into topic-aligned token subsets. |
| Outcome: | The proposed method achieves text quality comparable to industry-leading systems and improves watermark robustness against paraphrasing and lexical perturbation attacks with minimal performance overhead. |